JPS6261708B2 - - Google Patents
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- Publication number
- JPS6261708B2 JPS6261708B2 JP15696879A JP15696879A JPS6261708B2 JP S6261708 B2 JPS6261708 B2 JP S6261708B2 JP 15696879 A JP15696879 A JP 15696879A JP 15696879 A JP15696879 A JP 15696879A JP S6261708 B2 JPS6261708 B2 JP S6261708B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- parts
- paper
- backing paper
- emulsion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000839 emulsion Substances 0.000 claims description 25
- 239000003063 flame retardant Substances 0.000 claims description 23
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 claims description 18
- 229920002554 vinyl polymer Polymers 0.000 claims description 17
- 229920006174 synthetic rubber latex Polymers 0.000 claims description 16
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 13
- 229920003002 synthetic resin Polymers 0.000 claims description 13
- 239000000057 synthetic resin Substances 0.000 claims description 13
- 239000007787 solid Substances 0.000 claims description 8
- 229920005989 resin Polymers 0.000 description 22
- 239000011347 resin Substances 0.000 description 22
- 229920000915 polyvinyl chloride Polymers 0.000 description 19
- 239000004800 polyvinyl chloride Substances 0.000 description 19
- 239000003795 chemical substances by application Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 229920000126 latex Polymers 0.000 description 6
- 239000004816 latex Substances 0.000 description 6
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 5
- 238000000576 coating method Methods 0.000 description 5
- 238000004049 embossing Methods 0.000 description 5
- 238000004513 sizing Methods 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- LNEUSAPFBRDCPM-UHFFFAOYSA-N carbamimidoylazanium;sulfamate Chemical compound NC(N)=N.NS(O)(=O)=O LNEUSAPFBRDCPM-UHFFFAOYSA-N 0.000 description 4
- 229920001577 copolymer Polymers 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005470 impregnation Methods 0.000 description 4
- 238000002156 mixing Methods 0.000 description 4
- 230000000704 physical effect Effects 0.000 description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- QGBSISYHAICWAH-UHFFFAOYSA-N dicyandiamide Chemical compound NC(N)=NC#N QGBSISYHAICWAH-UHFFFAOYSA-N 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- NBIIXXVUZAFLBC-UHFFFAOYSA-N phosphoric acid Substances OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 3
- 239000011118 polyvinyl acetate Substances 0.000 description 3
- 229920002689 polyvinyl acetate Polymers 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000013329 compounding Methods 0.000 description 2
- 239000003085 diluting agent Substances 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- -1 vinyl compound Chemical class 0.000 description 2
- 239000004254 Ammonium phosphate Substances 0.000 description 1
- GEHMBYLTCISYNY-UHFFFAOYSA-N Ammonium sulfamate Chemical compound [NH4+].NS([O-])(=O)=O GEHMBYLTCISYNY-UHFFFAOYSA-N 0.000 description 1
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 229920000877 Melamine resin Polymers 0.000 description 1
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 229920001328 Polyvinylidene chloride Polymers 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- 229910000148 ammonium phosphate Inorganic materials 0.000 description 1
- 235000019289 ammonium phosphates Nutrition 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- YACLQRRMGMJLJV-UHFFFAOYSA-N chloroprene Chemical compound ClC(=C)C=C YACLQRRMGMJLJV-UHFFFAOYSA-N 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- ZZTURJAZCMUWEP-UHFFFAOYSA-N diaminomethylideneazanium;hydrogen sulfate Chemical compound NC(N)=N.OS(O)(=O)=O ZZTURJAZCMUWEP-UHFFFAOYSA-N 0.000 description 1
- MNNHAPBLZZVQHP-UHFFFAOYSA-N diammonium hydrogen phosphate Chemical compound [NH4+].[NH4+].OP([O-])([O-])=O MNNHAPBLZZVQHP-UHFFFAOYSA-N 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 238000010556 emulsion polymerization method Methods 0.000 description 1
- 239000003623 enhancer Substances 0.000 description 1
- 229920006242 ethylene acrylic acid copolymer Polymers 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- SSHPJTCTVWVCLI-UHFFFAOYSA-N guanidine;phosphoric acid Chemical compound NC(N)=N.NC(N)=N.OP(O)(O)=O SSHPJTCTVWVCLI-UHFFFAOYSA-N 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 239000011120 plywood Substances 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000005033 polyvinylidene chloride Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000003381 stabilizer Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Landscapes
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
- Laminated Bodies (AREA)
Description
本発明はビニル壁紙に於て、塩化ビニル樹脂と
難燃性裏打紙との接着性の改良に関するものであ
る。
近年生活様式の近代化から壁装材として壁紙の
使用量が増大しているが、この壁紙のうちでも表
面を塩化ビニル樹脂で加工した、いわゆるビニル
壁紙と呼ばれるものが多く使用されている。ビニ
ル壁紙の一般的な構造は裏打紙の表面に、塩化ビ
ニル樹脂に可塑剤、充填剤、安定剤、着色剤、発
泡剤等の各種配合剤を加えたビニルコンパウンド
の層が一部裏打紙に浸透して被覆されているか、
又は接着剤で接着されており、エンボシング装置
で型が押され、プリント模様が施されている。こ
のビニル壁紙の製法はコーテイング法とカレンダ
ー法に大別される。コーテイング法は乳化重合法
による塩ビペーストレジンに各種配合物と希釈剤
としてキシロール等の有機溶剤を加えて塗料を作
り、ナイフコーター、リバスロルコーター等の塗
工機で裏打紙に１回ないし数回塗布した後、乾燥
炉で希釈剤を蒸発させ塗料をゲル化又は半ゲル化
した状態で巻取り、次いでプリンテイング及びエ
ンボシング加工を施してビニル壁紙を製造する。
一方カレンダー法では塩ビストレートレジンに各
種配合剤を加えて混合、撹拌し、加熱混練して溶
融したコンパウンドをカレンダーロールで圧延
し、カレンダーロールの間隙の調整により所定の
厚味のシート状にして、コンパウンドが可塑性を
帯びている間にカレンダーで押圧により直接裏打
紙と貼合せるか、又はシート状に引き出した直後
に別のロールで押圧により裏打紙と貼り合せる場
合と、一旦塩ビシートを巻取つてから後にラミネ
ターで裏打用原紙と貼合せる場合があり、次に表
面にプリンテイング及びエンボシング加工を施し
ビニル壁紙を製造する。裏打紙の主成分であるセ
ルロース繊維と塩化ビニル樹脂との親和性は本質
的に良好でないため、上記２種類のビニル壁紙の
製法に於て、特にカレンダー法の場合にはコーテ
イング法と比較すると塩ビ樹脂の流れによる裏打
紙への投錨（アンカーリング）効果が余り期待で
きないので、塩ビ樹脂と裏打紙との接着性は低く
なつてしまう。そこで表面に何ら処理しない裏打
紙をそのまま使用すると、塩ビ樹脂層を形成させ
た後のプリンテイング及びエンボス加工時に塩ビ
樹脂層が裏打紙から剥れてしまい、シワ、フク
レ、印刷ずれ等のトラブルが起き易くなり、歩留
り、加工速度等が大巾に低下すると言う問題を生
じてくる。この問題を解決するために予め裏打紙
に塩ビ樹脂と裏打紙の両方に親和性を持つた接着
剤を塗布したり、溶剤型の塩ビ系樹脂等を塗布し
て塩ビ樹脂と裏打紙の接着性を向上する方法が採
られている。しかしこの方法では工程数が増し、
作業が繁雑化し、歩留りも低下しコスト高となる
欠点が有る。
一方壁紙が法定防火材料となるためには難燃性
であることが必要で、ビニル壁紙は塩ビ樹脂が本
来持つている難燃性を生かすために裏打紙に難燃
紙を使用する例が非常に多くなつて来ている。こ
の難燃紙をビニル壁紙製造時に使用すると、難燃
剤の種類によつては塩ビ樹脂と裏打紙の親和性が
より低下し、前記のトラブルがより多く生じる傾
向にあつた。
本発明者はこれらの欠点を解決すべく検討を進
めた結果、難燃剤に合成ゴムラテツクス若しくは
合成樹脂エマルシヨンを少量添加した水性組成物
を原紙に含浸させることによつて、工程数を増加
することなく塩ビ樹脂と裏打紙の接着性を大巾に
向上することができることを見出し本発明を完成
するに到つた。即ち本発明の要旨は難燃剤100重
量部（以下重量部、重量％は固型分換算を意味す
る）に対して合成ゴムラテツクス若しくは合成樹
脂エマルシヨンを３〜10重量部添加してなる水性
組成物を、製品に対して13〜40重量％含浸（以下
含浸量は製品に対しての含浸量を意味する）させ
てビニル壁紙用難燃性裏打紙を製造することにあ
る。
ある種の難燃剤と合成ゴムラテツクスを併用し
て難燃紙を製造する例は特公昭49―29125号公報
等で公知であるが、該公報の発明の目的は紙層剥
離強度の向上を主目的とした難燃紙の製法であつ
て、その目的を達成するために必然的に合成ゴム
ラテツクスの原紙に対する付着量も多くなつてい
る。これに対して本発明の目的はビニル壁紙製造
時の塩ビ樹脂と裏打紙の接着性の向上を目的とし
たものであつて、合成ゴムラテツクス若しくは合
成樹脂エマルシヨンの原紙に対する含浸量がわず
かであつても塩ビ樹脂と裏打紙の接着性は著しく
向上し本発明の目的は達成できる。該公報の壁紙
は風呂、トイレ、通路等の過酷な条件下において
自然剥離しないという特殊用途を対象としたもの
であり、強制剥離時の作業性を犠性にしたもので
ある。しかるに、本発明は合成ゴムラテツクスを
含浸しながらも少量であるので、強制剥離時の作
業性が良好な一般的用途を対象とするものであ
る。
本発明で使用される難燃剤としては、スルフア
ミン酸グアニジン、リン酸ジグアニジン、スルフ
アミン酸アンモニウム、縮合リン酸アルキルエス
テル誘導体、硫酸グアニジン、リン酸アンモニウ
ム、硫酸アンモニウム等の水溶性若しくは水に分
散が可能な難燃剤があげられる。
合成ゴムラテツクス若しくは合成樹脂エマルシ
ヨンとしてはアクリロニトリル―ブタジエン共重
合ラテツクス、スチレン―ブタジエン共重合ラテ
ツクス、メチルメタクリレト―ブタジエン共重合
ラテツクス、クロロプレンラテツクス、ポリイソ
プレンラテツクス等の合成ゴムラテツクスやポリ
塩化ビニルエマルシヨン、ポリ塩化ビニリデンエ
マルシヨン、ポリ酢酸ビニルエマルシヨン、ポリ
スチレンエマルシヨン、ポリウレタンエマルシヨ
ン、ポリアクリレートエマルシヨン、エチレン―
酢ビ共重合エマルシヨン、エチレン―アクリル酸
共重合エマルシヨン等の合成樹脂エマルシヨンが
あげられる。本発明ではこれら合成ゴムラテツク
ス若しくは合成樹脂エマルシヨンの単独又は数種
を併用して用いる。
合成ゴムラテツクス若しくは合成樹脂エマルシ
ヨンの種類によつては後に述べるように塩ビ樹脂
と裏打紙の接着性向上の効果に大小があるが、そ
の場合は難燃剤に対する添加量を調整することに
より本発明の目的は達成できる。
一般に難燃剤は合成ゴムラテツクス若しくは合
成樹脂エマルシヨンとの混和性が悪いものが多
く、この場合は界面活性剤等を添加して混和性を
向上することができる。
また必要に応じてデン粉、サイズ剤、染顔料等
の製紙用副資材やジシアンジアミド、メラミンの
メチロール化物、ジシアンジアミドのメチロール
化物等の耐熱助剤を併用しても、本発明の目的を
阻害しない程度ならば一向に差し支えない。
塩ビ樹脂と裏打紙の接着強度は後に述べる熱傾
斜試験機による接着テストで加圧温度170℃に於
ての剥離強度が50ｇｆ／25mm以上、好ましくは70
ｇｆ／25mm以上であることが望ましい。剥離強度
が50ｇｆ／25mmより低くなると、ビニル壁紙製造
時に前記のようなトラブルを生じ易くなる。
難燃剤100重量部に対する合成ゴムラテツクス
若しくは合成樹脂エマルシヨンの添加量は３〜20
重量部、望ましくは３〜10重量部が適当である。
３重量部未満では塩ビ樹脂と裏打紙との接着性の
向上はわずかであり、エンボシングやプリンテイ
ング加工時に前記のトラブルを生じ易くなる。ま
た20重量部を越えると難燃効果が低下するし、裏
打紙の紙層剥離強度が大きくなつてしまう。した
がつて、後述したピーラブル適性をより満足させ
るには、10重量部以下が望ましい。本発明に於て
は紙層剥離強度が余り大きくなることは好ましく
ない、と言うのは古くなつたビニル壁紙を剥して
貼り換えする際に、石膏ボードやベニヤ板に接着
されている場合には裏打紙の内層よりうまく剥れ
ずに下地を傷つけたり、均一な剥離ができなくな
るからである。つまり壁紙の性能の一つであるい
わゆるピーラブル適性を低下させてしまうからで
ある。
また本発明の水性組成物の含浸量は13〜40重量
％が適当である。13重量％より低いと難燃効果が
ほとんど得られないし、また40重量％を越えても
難燃性のこれ以上の向上は期待できなくなり、経
済的にみても好ましくない。本発明による水性組
成物の裏打用原紙への含浸は、原紙に水性組成物
が均一に含浸できる方法であればどの様な方法で
もかまわないが、通常は原紙抄造時にサイズプレ
ス装置あるいはタブサイズ装置等により含浸した
り、予め原紙を抄造してから後に含浸機で含浸加
工することにより達成される。
以下本発明に到つた経緯を実験例を挙げて説明
する。
実験例 １
原紙配合（固型換算）
NBKP 50重量部
LBKP 50重量部
白土 15重量部
湿潤紙力増強剤 １重量部
定着剤 適量
上記原紙配合で叩解度28゜SRの紙料を長網抄
紙機で常法に従い67ｇ／m2（絶乾）の原紙を抄造
した。次いで下記配合割合で含浸液を調製した。
（数値は固型重量部）
The present invention relates to improving the adhesion between vinyl chloride resin and flame-retardant backing paper in vinyl wallpaper. In recent years, with the modernization of lifestyles, the amount of wallpaper used as wall covering material has increased, and among these wallpapers, so-called vinyl wallpaper, whose surface is treated with vinyl chloride resin, is often used. The general structure of vinyl wallpaper is that on the surface of the backing paper, a layer of vinyl compound, which is made by adding various compounding agents such as plasticizers, fillers, stabilizers, colorants, and foaming agents to vinyl chloride resin, is partially attached to the backing paper. Is it penetrated and covered?
Alternatively, it may be bonded with adhesive, stamped with an embossing device, and a printed pattern may be applied. The manufacturing method for vinyl wallpaper is broadly divided into coating method and calendar method. The coating method is to make a paint by adding various compounds and an organic solvent such as xylol as a diluent to PVC paste resin by emulsion polymerization method, and coat it once or several times on the backing paper with a coating machine such as a knife coater or revasrol coater. After coating, the diluent is evaporated in a drying oven, the gelled or semi-gelled paint is rolled up, and then printed and embossing is performed to produce vinyl wallpaper.
On the other hand, in the calendar method, various compounding agents are added to PVC straight resin, mixed, stirred, heated and kneaded, and the molten compound is rolled with calendar rolls, and the gap between the calendar rolls is adjusted to form a sheet with a predetermined thickness. While the compound is plastic, it is directly pasted to the backing paper by pressing with a calendar, or immediately after being drawn out into a sheet, it is pasted to the backing paper by pressing with another roll, or once the PVC sheet is rolled up. After that, it may be laminated with a base paper for backing using a laminator, and then printing and embossing are performed on the surface to produce vinyl wallpaper. Since the affinity between cellulose fibers, which are the main components of backing paper, and vinyl chloride resin is essentially not good, in the manufacturing methods of the above two types of vinyl wallpaper, especially in the case of the calendar method, the PVC resin is lower than the coating method. Since the anchoring effect on the backing paper due to the resin flow cannot be expected to be very good, the adhesiveness between the PVC resin and the backing paper becomes low. Therefore, if the backing paper without any surface treatment is used as is, the PVC resin layer will peel off from the backing paper during printing and embossing after forming the PVC resin layer, causing problems such as wrinkles, blisters, and misalignment of printing. This results in problems such as a significant decrease in yield, processing speed, etc. In order to solve this problem, adhesives that have an affinity for both PVC resin and backing paper may be applied to the backing paper in advance, or solvent-based PVC resin may be applied to the backing paper to improve the adhesion between the PVC resin and the backing paper. Methods are being adopted to improve this. However, this method increases the number of steps,
This has the disadvantage that the work becomes complicated, the yield decreases, and the cost increases. On the other hand, in order for wallpaper to be a legal fire-retardant material, it must be flame-retardant, and there are many examples of vinyl wallpaper using flame-retardant paper as the backing paper to take advantage of the inherent flame retardancy of PVC resin. It is becoming more and more common. When this flame retardant paper is used in the production of vinyl wallpaper, the affinity between the vinyl chloride resin and the backing paper tends to decrease depending on the type of flame retardant, and the above-mentioned problems tend to occur more frequently. The inventor of the present invention conducted studies to solve these drawbacks, and found that by impregnating base paper with an aqueous composition containing a small amount of synthetic rubber latex or synthetic resin emulsion as a flame retardant, it was possible to solve these problems without increasing the number of steps. The present invention was completed by discovering that the adhesiveness between the PVC resin and the backing paper can be greatly improved. That is, the gist of the present invention is to prepare an aqueous composition in which 3 to 10 parts by weight of synthetic rubber latex or synthetic resin emulsion is added to 100 parts by weight of a flame retardant (hereinafter "parts by weight" and "weight%" means solid content). The purpose is to manufacture flame-retardant backing paper for vinyl wallpaper by impregnating the product with 13 to 40% by weight (hereinafter, the amount of impregnation means the amount of impregnation with respect to the product). An example of producing flame-retardant paper using a certain kind of flame retardant and synthetic rubber latex is known from Japanese Patent Publication No. 49-29125, etc., but the main purpose of the invention in this publication is to improve the peel strength of the paper layer. In order to achieve this purpose, the amount of synthetic rubber latex attached to the base paper is inevitably increased. In contrast, the purpose of the present invention is to improve the adhesion between PVC resin and backing paper during the production of vinyl wallpaper, even if the amount of synthetic rubber latex or synthetic resin emulsion impregnated into the base paper is small. The adhesion between the PVC resin and the backing paper is significantly improved, and the object of the present invention can be achieved. The wallpaper disclosed in this publication is intended for special purposes in that it does not naturally peel off under harsh conditions such as in baths, toilets, passageways, etc., and it sacrifices workability during forced peeling. However, the present invention is intended for general use in which synthetic rubber latex is impregnated, but only in a small amount, so that workability during forcible peeling is good. The flame retardants used in the present invention include water-soluble or water-dispersible flame retardants such as guanidine sulfamate, diguanidine phosphate, ammonium sulfamate, condensed phosphoric acid alkyl ester derivatives, guanidine sulfate, ammonium phosphate, and ammonium sulfate. Fuel can be given. Synthetic rubber latexes or synthetic resin emulsions include synthetic rubber latexes such as acrylonitrile-butadiene copolymer latex, styrene-butadiene copolymer latex, methyl methacrylate-butadiene copolymer latex, chloroprene latex, polyisoprene latex, polyvinyl chloride emulsion, Polyvinylidene chloride emulsion, polyvinyl acetate emulsion, polystyrene emulsion, polyurethane emulsion, polyacrylate emulsion, ethylene-
Examples include synthetic resin emulsions such as vinyl acetate copolymer emulsion and ethylene-acrylic acid copolymer emulsion. In the present invention, these synthetic rubber latexes or synthetic resin emulsions are used alone or in combination. Depending on the type of synthetic rubber latex or synthetic resin emulsion, the effect of improving the adhesion between the PVC resin and the backing paper will vary depending on the type of synthetic rubber latex or synthetic resin emulsion. can be achieved. In general, many flame retardants have poor miscibility with synthetic rubber latex or synthetic resin emulsion, and in this case, surfactants or the like can be added to improve the miscibility. In addition, if necessary, auxiliary papermaking materials such as starch, sizing agents, dyes and pigments, and heat-resistant aids such as dicyandiamide, methylolated melamine, and methylolated dicyandiamide may be used to the extent that the object of the present invention is not impaired. If so, there is absolutely no problem. The adhesive strength between the PVC resin and the backing paper is determined by an adhesive test using a thermal gradient tester described later, and the peel strength at a pressurizing temperature of 170°C is 50 gf/25 mm or more, preferably 70.
It is desirable that gf/25mm or more. If the peel strength is lower than 50 gf/25 mm, the above-mentioned troubles are likely to occur during the production of vinyl wallpaper. The amount of synthetic rubber latex or synthetic resin emulsion added to 100 parts by weight of flame retardant is 3 to 20 parts by weight.
Parts by weight, preferably 3 to 10 parts by weight, are suitable.
If it is less than 3 parts by weight, the adhesion between the PVC resin and the backing paper is only slightly improved, and the above-mentioned troubles are likely to occur during embossing and printing. Moreover, if it exceeds 20 parts by weight, the flame retardant effect will decrease and the paper layer peel strength of the backing paper will increase. Therefore, in order to better satisfy the peelability described below, it is desirable that the amount is 10 parts by weight or less. In the present invention, it is undesirable for the paper layer peel strength to become too high, because when old vinyl wallpaper is peeled off and replaced, if it is glued to plasterboard or plywood, the backing This is because the inner layer of paper cannot be peeled off as easily and may damage the base, or may not be peeled off uniformly. In other words, this is because the so-called peelable suitability, which is one of the properties of wallpaper, is reduced. Further, the amount of impregnation of the aqueous composition of the present invention is suitably 13 to 40% by weight. If it is less than 13% by weight, almost no flame retardant effect will be obtained, and if it exceeds 40% by weight, no further improvement in flame retardancy can be expected, which is not desirable from an economic standpoint. The aqueous composition of the present invention may be impregnated into the base paper for backing by any method as long as the aqueous composition can be uniformly impregnated into the base paper, but usually a size press device or tab size device is used during base paper manufacturing. This can be achieved by impregnating with a method such as the above, or by making a base paper in advance and then impregnating it with an impregnating machine. The circumstances leading to the present invention will be explained below with reference to experimental examples. Experimental example 1 Base paper composition (solid equivalent) NBKP 50 parts by weight LBKP 50 parts by weight White clay 15 parts by weight Wet paper strength enhancer 1 part by weight Fixing agent Appropriate amount A fourdrinier paper stock with a beatingness of 28°SR using the above base paper composition A base paper of 67 g/m 2 (absolutely dry) was made according to a conventional method. Next, an impregnating solution was prepared with the following blending ratio.
(Numbers are parts by solid weight)
【表】
含浸液の安定性向上のために必要に応じ各種界
面活性剤を適宜加えた。上記配合の20重量％の含
浸液を原紙に固型分（絶乾）で13ｇ／m2（含浸量
は16.3％）付着するように含浸し120℃で乾燥し
た。次いで20℃、65％RHの室内に１昼夜放置後
諸物性を測定した（以下物性測定はこの条件で行
つた）。
その結果を表―２に示す。[Table] Various surfactants were added as necessary to improve the stability of the impregnating solution. The base paper was impregnated with 20% by weight of the impregnating liquid of the above composition so that the solid content (absolutely dry) was 13 g/m 2 (impregnated amount: 16.3%) and dried at 120°C. Next, various physical properties were measured after being left in a room at 20°C and 65% RH for one day and night (hereinafter physical property measurements were conducted under these conditions). The results are shown in Table-2.
【表】
実験例 ２
実験例―１と同一の原紙を用い下記配合の含浸
液を調製し、固型分で11.8ｇ／m2（含浸量は15
％）付着するように含浸し、120℃で乾燥してか
ら物性測定を行つた。[Table] Experimental Example 2 Using the same base paper as in Experimental Example 1, an impregnating liquid with the following composition was prepared, and the solid content was 11.8 g/m 2 (the impregnated amount was 15
%), and the physical properties were measured after drying at 120°C.
【表】【table】
【表】
実験例 ３
実験例―１と同一の原紙を用いて下記配合の含
浸液を調製し、含浸量を10％，13％，15％，20
％，40％と５段階に変化させ含浸し諸物性を測定
した。
含浸液配合
スルフアミン酸グアニジン 100重量部
サイズ剤 ６重量部
ポリ酢酸ビニルエマルシヨン 20重量部[Table] Experimental Example 3 Using the same base paper as in Experimental Example-1, prepare an impregnating liquid with the following composition, and adjust the impregnating amount to 10%, 13%, 15%, 20%.
%, 40%, and various physical properties were measured. Impregnation liquid blended guanidine sulfamate 100 parts by weight Sizing agent 6 parts by weight Polyvinyl acetate emulsion 20 parts by weight
【表】【table】
【表】
本実験によつて明らかな様に、難燃剤100重量
部に対して合成ゴムラテツクス若しくは合成樹脂
エマルシヨンを３〜10重量部添加してなる水性組
成物を13〜40重量％含浸すれば、ビニル壁紙用難
燃性裏打紙として実用に供し得ることが確認でき
た。なお、本実験例に挙げた以外の難燃剤、合成
ゴムラテツクス、合成樹脂エマルシヨンを種々組
合わせて検討したところ同様な結論が得られた。
実施例 １
実験例―１の原紙配合で叩解度28゜SRの紙料
を長網抄紙機で67ｇ／m2になる様に抄造し、サイ
ズプレス装置により次の配合割合の含浸液を17％
含浸した。
スルフアミン酸グアニジン 50重量部
縮合リン酸アルキルエステル誘導体 50重量部
ジシアンジアミド ５重量部
サイズ剤 ６重量部
ポリ酢酸ビニルエマルシヨン ５重量部
ポリアクリレートエマルシヨン ５重量部
実施例 ２
実施例―１と同一の原紙を使用し、次の配合割
合の含浸液を21％含浸した。
スルフアミン酸グアニジン 100重量部
サイズ剤 ６重量部
メチルメタクリレート―ブタジエン共重合ラ
テツクス 10重量部
実施例 ３
実施例―１と同一の原紙に次の配合割合の含浸
液を17％含浸した。
縮合リン酸アルキルエステル誘導体
100重量部
サイズ剤 ６重量部
ポリ塩化ビニルエマルシヨン 10重量部[Table] As is clear from this experiment, if 13 to 40% by weight of an aqueous composition prepared by adding 3 to 10 parts by weight of synthetic rubber latex or synthetic resin emulsion to 100 parts by weight of flame retardant is impregnated, It was confirmed that the paper could be put to practical use as a flame-retardant backing paper for vinyl wallpaper. Similar conclusions were obtained when various combinations of flame retardants, synthetic rubber latexes, and synthetic resin emulsions other than those mentioned in this experimental example were investigated. Example 1 A paper stock with a freeness of 28°SR using the base paper composition of Experimental Example-1 was made into paper with a fourdrinier machine to give a paper weight of 67g/ m2 , and an impregnating liquid with the following blending ratio was made into 17% using a size press machine.
Impregnated. Guanidine sulfamate 50 parts by weight Condensed phosphoric acid alkyl ester derivative 50 parts by weight Dicyandiamide 5 parts by weight Sizing agent 6 parts by weight Polyvinyl acetate emulsion 5 parts by weight Polyacrylate emulsion 5 parts by weight Example 2 Same base paper as Example-1 was used to impregnate 21% of the impregnating liquid with the following blending ratio. Guanidine sulfamate 100 parts by weight Sizing agent 6 parts by weight Methyl methacrylate-butadiene copolymer latex 10 parts by weight Example 3 The same base paper as in Example-1 was impregnated with 17% of the impregnating liquid having the following blending ratio. Condensed phosphoric acid alkyl ester derivative
100 parts by weight Sizing agent 6 parts by weight Polyvinyl chloride emulsion 10 parts by weight
【表】
いずれもビニル壁紙用難燃性裏打紙として十分
実用に供し得ることが確認できた。[Table] It was confirmed that all of the samples could be put to practical use as flame-retardant backing paper for vinyl wallpaper.
Claims (1)
（固型分）に対して合成ゴムラテツクス若しくは
合成樹脂エマルジヨンを３〜10重量部（固型分）
添加してなる水性組成物を製品に対して13〜40重
量％（固型分）含浸させたことを特徴とするビニ
ル壁紙用難燃性裏打紙。1. In easily peelable wallpaper, 3 to 10 parts by weight (solid content) of synthetic rubber latex or synthetic resin emulsion per 100 parts by weight (solid content) of flame retardant.
1. A flame-retardant backing paper for vinyl wallpaper, characterized in that the product is impregnated with an aqueous composition of 13 to 40% by weight (solid content).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15696879A JPS5679779A (en) | 1979-12-04 | 1979-12-04 | Fire retardant backing paper for vinyl wall paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15696879A JPS5679779A (en) | 1979-12-04 | 1979-12-04 | Fire retardant backing paper for vinyl wall paper |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5679779A JPS5679779A (en) | 1981-06-30 |
| JPS6261708B2 true JPS6261708B2 (en) | 1987-12-23 |
Family
ID=15639250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15696879A Granted JPS5679779A (en) | 1979-12-04 | 1979-12-04 | Fire retardant backing paper for vinyl wall paper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5679779A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01168302U (en) * | 1988-05-20 | 1989-11-28 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20150299945A1 (en) * | 2012-10-16 | 2015-10-22 | Dow Global Technologies Llc | Polyurethane dispersion based synthetic leathers comprising acrylic latex |
-
1979
- 1979-12-04 JP JP15696879A patent/JPS5679779A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01168302U (en) * | 1988-05-20 | 1989-11-28 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5679779A (en) | 1981-06-30 |
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